Railway Cables
Railway Signalling & Control Cables Railway Telecom Cables Railway Power & Control Cables FIRERAIL Traction Cables

 

AJ-2Y(L)2YDB2Y S(H45)

 

Application

The cables are designed for transmission of low frequent signals up to 90 KHz through symmetric circuits in

railway networks, and are suitable for laying directly into the ground or in ducts.

Standards

Dlk 1.013.109y

Dlk 1.013.110y

Construction

AJ-2Y(L)2YDB2Y S(H45)

Conductors: Solid Annealed copper, 0.9 or 1.4 mm nominal diameter.

Insulation: Solid polyethylene.

Cabling Element: Four insulated conductors are twisted together to form a quad.

Stranding: Quads are helically stranded in concentric layers. Cables from 7 quads on, have two extra conductors

of 0.5mm with perforated insulation (surveillance conductors).

Core Wrapping: Plastic tape(s) with overlapping.

IMoisture Barrier: One laminated sheath made of aluminium tape (0.15mm) coated with PE-Copolymer on at

least one side is applied with longitudinally overlap.

Inner Sheath: Low density polyethylene.

Electrostatic Shield: One layer of helically applied copper wires (0.9, 1.2, 1.4 or 1.8mm).

Electromagnetic Shield: Two helically applied steel tapes (0.5 or 0.8mm thick, depending on required reduction

factor).

Outer Sheath: Low density polyethylene.

Type Codes

AJ– outdoor cable with protection against inductive infl uences

2Y- solid PE conductor insulation

(L)2Y- inner laminated PE sheath

D- copper wire concentric screen

B- steel tape armor

2Y- outer PE sheath

S- signal cable

LG- layer stranding

H(n)- operating capacity

Ring marking of Quad

The single core is identifi ed by black ring markings:

Side Circuit 1 : a-wire, without marking

b-wire, 1 mark distance 17mm

Side Circuit 2: a-wire, 2 marks distance 34mm

b-wire, 2 marks distance 17mm

Electrical Characteristics at 20℃

Nominal Conductor Diameter mm 0.9 1.4
Maximum Conductor Resistance Ω/km 56.6 23.4
Minimum Insulation Resistance @500 V DC (1min) MΩ.km 1000 1000
Maximum Conductor Capacitance @800Hz (AC) nF/km 45 45
Maximum Capacitance Unbalance @800Hz
K1 (100% / 50% all values) pF/km 650/150 650/150
K9-12 neighboured quads pF/km 500/150 500/150
K9-12 over-neighboured quads pF/km 150 150
ea1/2 pF/km 1300 1300
Miniumum Far-end Crosstalk Attenuation @90KHz
100% / 80% all values dB/km 58/62 33/45
Maximum Attenuation @90KHz dB/km 3.3 2.6
Dielectric Strength, conductor to conductor (DC voltage 1min) V 3535 3535
Surveillance Conductors
Loop resistance, maximum Ω/km 190 190
Insulation resistance
- dry cable core, minimum MΩ.km 1000 1000
- wet cable core, maximum KΩ.km 30 30
Optional: Nominal Reduction Factor @ 100 V/km, 16 2/3 Hz
rk 401 series 0.15 0.15
rk 501 series 0.35 0.35
rk 601 series 0.55 0.55
Operating Voltage AC/DC V 420/600 420/600
Test Voltage 50 Hz 1 min
Core to Core Veff 2500 2500
Core to Screen Veff 2500 2500

Mechanical and Thermal Properties

Minimum Bending Radius: 10×OD

Temperature Range: -40℃ to +60℃ (during operation);

                                  -10℃ +60℃ (during installation)

Dimensions And Weight

Cable Code Number of
Quads		 Nominal Sheath Thickness
mm		 Nominal Overall
Diameter
mm		 Nominal
Weight
kg/km
Inner Outer
0.9mm Conductor, 1.8mm Insulated Wire rk 601 Series
RS109y-2Y(L)2YDB2Y-3Q0.9-S(H45)-R6 3 1.3 1.2 21.0 650
RS109y-2Y(L)2YDB2Y-5Q0.9-S(H45)-R6 5 1.3 1.2 23.0 800
RS109y-2Y(L)2YDB2Y-10Q0.9-S(H45)-R6 10 1.3 1.2 28.0 1130
RS109y-2Y(L)2YDB2Y-20Q0.9-S(H45)-R6 20 1.3 1.2 35.0 1670
RS109y-2Y(L)2YDB2Y-30Q0.9-S(H45)-R6 30 1.3 1.2 40.0 2180
RS109y-2Y(L)2YDB2Y-40Q0.9-S(H45)-R6 40 1.3 1.2 45.0 2650
0.9mm Conductor, 1.8mm Insulated Wire rk 401 Series
RS109y-2Y(L)2YDB2Y-10Q0.9-S(H45)-R4 10 1.3 1.2 31.0 1880
RS109y-2Y(L)2YDB2Y-20Q0.9-S(H45)-R4 20 1.3 1.2 38.0 2640
RS109y-2Y(L)2YDB2Y-30Q0.9-S(H45)-R4 30 1.3 1.2 43.0 3310
RS109y-2Y(L)2YDB2Y-40Q0.9-S(H45)-R4 40 1.3 1.2 48.0 3880
1.4mm Conductor, 2.6mm Insulated Wire rk 501 Series
RS109y-2Y(L)2YDB2Y-3Q1.4-S(H45)-R5 3 1.3 1.2 25.0 1060
RS109y-2Y(L)2YDB2Y-5Q1.4-S(H45)-R5 5 1.3 1.2 29.0 1360
RS109y-2Y(L)2YDB2Y-10Q1.4-S(H45)-R5 10 1.3 1.2 37.0 2040
RS109y-2Y(L)2YDB2Y-20Q1.4-S(H45)-R5 20 1.3 1.2 47.0 3180
RS109y-2Y(L)2YDB2Y-30Q1.4-S(H45)-R5 30 1.3 1.2 54.0 4220
RS109y-2Y(L)2YDB2Y-40Q1.4-S(H45)-R5 40 1.3 1.2 61.0 5180
1.4mm Conductor, 2.6mm Insulated Wire rk 401 Series
RS109y-2Y(L)2YDB2Y-3Q1.4-S(H45)-R4 3 1.3 1.2 28.0 1650
RS109y-2Y(L)2YDB2Y-5Q1.4-S(H45)-R4 5 1.3 1.2 31.0 1950
RS109y-2Y(L)2YDB2Y-10Q1.4-S(H45)-R4 10 1.3 1.2 39.0 2880
RS109y-2Y(L)2YDB2Y-20Q1.4-S(H45)-R4 20 1.3 1.2 49.0 4180
RS109y-2Y(L)2YDB2Y-30Q1.4-S(H45)-R4 30 1.3 1.2 56.0 5330
RS109y-2Y(L)2YDB2Y-40Q1.4-S(H45)-R4 40 1.3 1.2 63.0 6430